Migatronic OMEGA2 Guide De L'utilisateur page 13

Connection and start-up
Connection of a water
cooling unit
(OMEGA 400/550 C)
2
1. Place the welding machine on top of the
cooling unit and mount the fitting (1).
2. Pull the power cable (2) through the hole on
the rear side of the machine. Dismount the
protection fitting (3) in the wire chamber
and insert the 4-pole plug (4). Remount the
protection fitting.
3. Dismount the two screws (5) on the fitting
with the quick connections (6).
4. Pull out and turn the fitting so that the quick
connections turn up. Then remount the fitting
with the screws (5) (see drawing).
5. Mount the flow hose on the water-cooled
torch in the quick connection marked blue
and the return hose in the quick connection
marked red.
6. The cooling liquid level should be inspected
regularly by means of the level control (7).
7. Refill of cooling liquid takes place through the
filler neck (8).
2
3
4
1
7
Selecting welding polarity
Polarity reversal is recommended for certain types
of welding wire, in particular Innershield welding
wire. For recommended polarity, please refer to
the welding wire packaging.
OMEGA
Change of polarity:
1. Disconnect the machine from the mains supply.
2. Dismount screws in the wire chamber with a
wrench (picture 1).
3. Exchange brass plate from plus to minus
(picture 1).
4. Mount screws in the wire chamber with a
wrench (picture 1).
5. Exchange earth cable from minus to plus
(picture 2).
6. Connect the machine to the mains supply.
OMEGA
Change of polarity:
1. Disconnect the machine from the mains supply.
2. Exchange intermediary cable from plus to
minus.
3. Exchange earth cable from minus to plus.
4. Connect the machine to the mains supply.
6 8
5
C
2
S
2
1
2
Change of polarity
OMEGA 2 C
2
Change of polarity
OMEGA 2 S
13